mirror of
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51 lines
1.1 KiB
Text
51 lines
1.1 KiB
Text
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#!/usr/bin/env bash
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if [[ "$#" -ne 4 ]]
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then
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echo Side by side image generator
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echo By Starbeamrainbowlabs
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echo -e "\nUsage:"
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echo " ./genframes.sh [leftimage.ext] [rightext.ext] [step] [outdir]"
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echo -e "\nNote that the output directory should *not* contain the trailing slash."
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exit
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fi
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i=0
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step="$3"
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imwidth=1680
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imheight=1050
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leftimage="$1"
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rightimage="$2"
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outdirprefix="$4/"
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frame=0
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while [ $(echo "$i <= 1" | bc) -eq 1 ]
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do
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nextoffset=$(calc -p "(${imwidth} / 2) * ${i}")
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leftpixcount=$(calc -p "$i * $imwidth")
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rightpixcount=$(calc -p "$imwidth - $leftpixcount")
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framefilename=${outdirprefix}$(printf "%03d" "$frame").jpeg
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echo $frame: $leftpixcount / $rightpixcount $framefilename
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if [[ $(echo "$leftpixcount == 0" | bc) -eq 1 ]]
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then
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cp $rightimage $framefilename
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elif [[ $(echo "$rightpixcount == 0" | bc) -eq 1 ]]
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then
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cp $leftimage $framefilename
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else
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convert $leftimage -crop ${leftpixcount}x${imheight}+0+0 $rightimage -crop ${rightpixcount}x${imheight}+$leftpixcount+0 +append "$framefilename"
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fi
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frame=$(calc -p "$frame + 1")
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i=$(calc -p "$i + $step")
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done
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